2215504233541 has 2 divisors, whose sum is σ = 2215504233542. Its totient is φ = 2215504233540.

The previous prime is 2215504233533. The next prime is 2215504233577. The reversal of 2215504233541 is 1453324055122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2004359388516 + 211144845025 = 1415754^2 + 459505^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215504233541 - 2³ = 2215504233533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2215504233541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215504233511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107752116770 + 1107752116771.

It is an arithmetic number, because the mean of its divisors is an integer number (1107752116771).

Almost surely, 2^{2215504233541} is an apocalyptic number.

It is an amenable number.

2215504233541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215504233541 is an equidigital number, since it uses as much as digits as its factorization.

2215504233541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 2215504233541 its reverse (1453324055122), we get a palindrome (3668828288663).

The spelling of 2215504233541 in words is "two trillion, two hundred fifteen billion, five hundred four million, two hundred thirty-three thousand, five hundred forty-one".